Role of air barriers in mitigating disease transmission

The importance of infection control and the impact of operating conditions on the built environment have taken renewed focus in the wake of the COVID-19 pandemic. As a part of the ongoing response, industry organizations, such as the American Society of Heating and Refrigerating and Air-conditioning Engineers (ASHRAE), have...
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Using masonry for wet flood-proofing

There are two types of flood-proofing—dry and wet. The design intent of dry flood-proofing is to allow flood waters to enter and exit the structure freely and allow the waters to rise and fall evenly inside the structure in the same rate and manner they rise and fall on...
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Specifying snow retention systems

Rooftop avalanches cause hundreds of millions of dollars in property damage, personal injury, and even death each year. Proper, job-specific design of a qualified snow retention system reduces building owner/designer liability when sliding snow presents a hazard.
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